Kids under 4 can travel free on Eurostar, as long as they can sit on the lap of an accompanying adult (one infant per adult traveller). If they need their own seat you should count them as a child passenger.

Prices from $70 one way

Trains from London to Lille

Trains from London to Disneyland® Paris

Prices from $64 one way

With children in tow, you need a journey that's simple and seamless. And with Eurostar, that's just what you get. In 2 hours 40 direct from London, speed straight to the gates of the parks in time for a full afternoon of fun.